Since it appears you dislike all religion I’m not sure my main point fits your tastes but I could say many of the various goals of Buddhist meditation such as realization emptiness of self or of phenomena, realization of impermanence, especially dhyana are all absent from whitewashed or medical meditation. I would say these can all be labeled as helpful but not necessarily religious goals but ontological.

To me this does two things, one it presents a false narrative of meditation by displacing it from its thousands of years of tradition. Two, it robs the practitioners of multiple goals and benefits, instead presenting it as simply calming. Which was never its goal, except maybe samatha meditation.

Essentially, I feel western mainstream and medical meditation denies meditations long history, makes up some goals and benefits that are not within the proven one’s, all while acting like they did it themselves.

Reminds me of the Duke University Koru counseling group which gave a talk on how their program came up with walking meditation…

I hope that’s helpful or at least clear. I do prefer traditional what you would call religious Buddhist mediation but even traditional does not have to contain things you dislike. For instance traditional Chan/Zen and vipasana teachers have been quite open to all students while teaching the full meditation